Tap Mun Beach, located on Grass Island, is a sandy beach suitable for swimming. However, it is generally unsupervised, meaning there are no lifeguards on duty. Swimmers should exercise caution, especially with currents or if venturing far from shore. There are typically no extensive changing facilities, so visitors should come prepared. It's a good spot for a refreshing dip during an island visit.

The best time to visit Tap Mun Beach is during periods of good weather, particularly the drier and sunnier months from October to April, for comfortable sunbathing and island exploration. Weekdays are generally less crowded, offering a more peaceful experience. The island's scenic beauty is best appreciated on a clear day, making it ideal for photography and relaxation.

Tap Mun (Grass Island) is accessible by ferry. You can take a kaito (small ferry) from Wong Shek Pier in Sai Kung, or from Ma Liu Shui Pier near University MTR station. The ferry journey offers scenic views. Once on Tap Mun Island, the beach is usually a short walk from the main pier. Check ferry schedules in advance, as they can be infrequent.

Tap Mun Island has a small village with a few local restaurants, often specializing in fresh seafood, and some small shops selling snacks and drinks. These are usually located near the pier. There are no major hotels on Tap Mun; however, some villagers may offer very basic guesthouse-style accommodation. Many visitors come for a day trip, bringing their own provisions.

Tap Mun Beach is a key highlight of a visit to Grass Island, offering a serene sandy stretch for relaxation and sunbathing. Beyond the beach, the island itself is known for its unique rock formations like the 'Balanced Rock,' open grasslands with grazing cattle, and a tranquil fishing village atmosphere. It's an ideal destination for hiking, photography, and experiencing a laid-back island escape.